.part1{
    height: 140px;
    border-bottom: #dbdcdd 1px solid;
}
.part1 #logo{
    width: 450px;
    float: left;
}
.part1 #logo img{
    margin-top: 35px;
    margin-left: 20px;
}
.part1 #sear{
    float: left;
    width: 500px;
}
.part1 #sear form{
    margin-left: 60px;
    margin-top: 50px;
}
.part1 #sear #key{
    border: 1px solid #dedede;
    outline: none;
    width: 260px;
    height: 36px;
    border-right: 0;
}
.part1 #sear #key::placeholder{
    opacity: 0.5;
}
.part1 #sear #go{
    background: rgb(255, 0, 77);
    cursor: pointer;
    border: 1px solid #dedede;
    outline: 0;
    width: 35px;
    height: 37.33px;
    border-left: 0;
    vertical-align: bottom;
}
.part1 #user-msg{
    float: left;
    height: 100%;
}
.part1 #user-msg div{
    margin-top: 60px;
    margin-left: 120px;
}
.part1 #user-msg #signin{
    margin-right: 20px;
}
.part1 #user-msg #logout{
    margin-right: 20px;
}